StickerRide - Let your car earn money through advertising
Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
Spacewolff - P2P marketplace for ads. Turn excess space into ad space.
QGIS - QGIS is a desktop geographic information system, or GIS.
Wrapify - Connecting drivers + brands to create on-vehicle advertising
OpenStreetMap - OpenStreetMap is a map of the world, created by people like you and free to use under an open license.